Note: Built as ATSF C30-7 units; owned by Helm/GE (HLGX) joint venture; rebuilt to C36M units by Metro-East Industries, East St. Louis, Illinois All were built as ATSF 8000-series units; leased by ATSF to GE in December 1989 and loaned by GE to UP to make up for slow deliveries of new C40-8s; retired by Santa Fe in January and June 1994 and traded to GE; leased by GE to Conrail as CR 500-series units; used in national lease fleet with CRL (Conrail Leasing) reporting marks; all had either 500 or 0500 series numbers. Many later had GECX and HLCX reporting marks.